Results 1 to 10 of about 210,432 (378)

A Comparison of Traditional and Geometric Morphometric Techniques for the Study of Basicranial Morphology in Horses: A Case Study of the Araucanian Horse from Colombia [PDF]

open access: yesAnimals, 2020
Skull size and shape have been widely used to study domestic animal populations and breeds. Although several techniques have been proposed to quantify cranial form, few attempts have been made to compare the results obtained by different techniques ...
Pere Miquel Parés-Casanova   +3 more
doaj   +4 more sources

Finding patterns of atoll morphometrics at a range of spatial scales

open access: yesFrontiers in Earth Science, 2023
Small Island Nations, often comprised of Atolls, are at considerable risk of climate change impacts from sea-level rise to coral acidification to increasing cyclone intensity; understanding how they will change in the coming century is vital for climate ...
Faith M. Johnson   +2 more
doaj   +1 more source

Potential Niche Modeling Distribution and Wing Geometric Morphometrics of Apis mellifera In The Brazilian Pantanal

open access: yesSociobiology, 2021
The ecological niche models can be important for biogeographic patterns and processes and geometric morphometrics involves identifying changes that have occurred and comparing them to other specimens from different places and/or environmental conditions,
Alessandra Carniato Peil, Rodrigo Aranda
doaj   +1 more source

Immature instars of three species of Rhodnius Stål, 1859 (Hemiptera, Reduviidae, Triatominae): morphology, morphometry, and taxonomic implications

open access: yesParasites & Vectors, 2022
Background Among the 18 genera of the Triatominae subfamily, three stand out for their diversity and epidemiological importance: Triatoma, Panstrongylus, and Rhodnius.
Gustavo Lázari Cacini   +6 more
doaj   +1 more source

The Morphological Diversity of Dragon Lacewing Larvae (Nevrorthidae, Neuroptera) Changed More over Geological Time Scales Than Anticipated

open access: yesInsects, 2023
Nevrorthidae, the group of dragon lacewings, has often been considered a relic group. Today, dragon lacewings show a scattered distribution, with some species occurring in southern Europe, Japan, Australia, and one in China.
Laura Mengel   +9 more
doaj   +1 more source

A Revised Phylogeny of the Mentha spicata Clade Reveals Cryptic Species

open access: yesPlants, 2021
The genus Mentha is taxonomically and phylogenetically challenging due to complex genomes, polyploidization and an extensive historical nomenclature, potentially hiding cryptic taxa.
Olivier C. G. Heylen   +3 more
doaj   +1 more source

Latitudinal Differentiation among Modern Planktonic Foraminiferal Populations of Central Mediterranean: Species–Specific Distribution Patterns and Size Variability

open access: yesJournal of Marine Science and Engineering, 2021
Studies of the spatial distribution and size of modern planktonic foraminifera are still lacking in the Mediterranean Sea. In this study, 17 core-top sediments collected from a north-south transect along the central Mediterranean have been analyzed for ...
George Kontakiotis   +4 more
doaj   +1 more source

Still slow, but even steadier: an update on the evolution of turtle cranial disparity interpolating shapes along branches [PDF]

open access: yesRoyal Society Open Science, 2017
In a previous study, we estimated the cranial disparity of turtles (Testudinata) through time using geometric morphometric data from both terminal taxa and hypothetical ancestors to compensate for temporal gaps in the fossil record.
Christian Foth   +2 more
doaj   +1 more source

Symmetry-Breaking Stabilities in Carapace Curvature on Testudo (Reptilia, Testudinidae)

open access: yesAnimals, 2022
The aim of this research was to contribute to the study of the doming geometry of Testudo carapace as an unstable point of equilibrium when animals are overturned.
Pere M. Parés-Casanova   +3 more
doaj   +1 more source

Morpho-Molecular and Ultrastructural Characterization of Discocriconemella parasinensis n. sp. from Zhejiang Province, China

open access: yesJournal of Nematology, 2022
During a recent inventory survey of the nematofauna of tea plantation at Zhejiang Province, China, Discocriconemella parasinensis n. sp. was detected in the rhizosphere of Camellia sinensis.
Li Junxia   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy